CASH, C G. Stone Circles at Grenish, Aviemore, and Delfour, Strathspey. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 40, p. 245–254, 1906. DOI: 10.9750/PSAS.040.245.254. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7058. Acesso em: 29 apr. 2024.